Truck-dumping device



E. A. BUSACKER.

TRUCK DUMPING DEVICE.

APPLICATION FILED JAN.23. 1920.

Patented Jan. 17, 1922.

2 $HhhIS-SHEET L Patented Jan. 17, 1922.

2 SHttIS-HEET 2.

mm ormer-1.

mm. A. nusacxrm, or MILWAUKEE, isconsin. 'rnucx-numrme Dav es.

To all whom it may concern:

Be it known that I, EMIL A. BUsAoKnR, 788 19th Street, Milwaukee, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Truck-Dumping Devices, of which the following is a description, reference being had to the'accompanying drawings, which are a part of this specification.

The present invention relates to vehicle trucks and more especially tothat type of truck in which the load receiving box is elevated. at its forward end to discharge the load and may be used for handling various kinds of bulk material.

l is to provide leve One object of this invention is to provide simple" and efiicient means carried by the vehicle chassis frame and engageable with a load receiving box for moving the same on its pivot.

A more specific object of this invention pivotally mounted on the vehicle chassis frame and co-operating to provide means for tilting the load re- .ceiving box, said levers being so arranged as to permit thetilting of the box with ease and facility, 7

With the above and other objects in view which will appear as the description proceeds, my invention resides in the novel .con-

struction, combination and arrangement of parts substantially as hereinafter'described and more particularly defined bythe appended claims, it being understood-that such changes in the precise embodiment" of the: herein disclosed invention mayv be made as' come withinthe scppe of the claims.

In the accompanying drawings have illustrated two completeexamp es of the physical embodiment of; my inventlon constructed according to the best modes I have so far de vised for the practical application of the vprinciples thereof, and'in which:

a Figure 1 is a side view of a portion of a vehicle truck equipped with my improved device: 1

Figure 2 is an enlarged view of a portion of the vehicle chassis frame and the 'load receiving box illustrating the box as being in tilted or dumping position.

Figure 3 is a view part in section and part I line 66.

Specification of Letters Patent. Patented 3,11, 17 1922, App1icatio'n filed January 23, 1920. Serial No. 353,551.

Figure 5 1s a view similar to Figure 2 of that form of my invention depicted in Fi re 4," and igure 6 is a view part in section and part" in, elevation taken through Figure 5 on the In general, the invention consists of sets of levers pivotallymounted on each side bar of the vehicle chassis frame and arranged to nest one within the other when'in foldedor inoperative position and co-acting to provide a strong leverage for tilting thebox, one of theleversbeing operated manually or otherwise by .a driven shaft through a gearv reduction. j

My device may be used on any type of vehicle truck'including a chassis frame 10 supported by the usual rear-drive wheels 11 andfront wheels (not shown) and havlng a bracket member'12 secured to each side bar of the chassis frame adjacent the extreme rear end thereof, which brackets are I pivotally connected as. at 13 with a load receiving box 14. As is usual in such constructions the pivot 13 is disposed near the rear end of the loa'd'receiving box and the .forward end of the box is free and adapted to be engaged by suitable lifting means to raise, or lower the same to discharge the contents of the box. v

In that form of my invention depicted in Figures ,1 to 3 I provid two sets ofcomplementary levers, one set carried by each bar of the chassis frame,.-and' as the are substantially identical the description of one will sufiice for both. f

A main liftinglever 15. formedof channel iron has its outer endpivoted as at 16 by means of a bracket memben 17' secured to the outer end of said lever and engaging. a bearin member '18 secured to the. chassis frame si e bar. The inner end of said lever is curved downwardly a short distance as at the under side of this rail that the roller 20 tracks, a metal plate 22 being secured to the bar 21 to reduce the wear-by the roller 20 to a minimum.

The main lifting lever 15 has its inner end raised or lowered to impart a corresponding movement to the inner free end of the load receiving box by a secondary lever 23 having its outer shaft 24 journalled in bearings 25 secured to the chassis frame side bars and its forward end slightly curved downwardly as at- 26 and having journally secured thereto a roller 27 adapted to track on the under side of the main lifting lever. As best shown in Figure 2 the secondary lever 23 isintegral with a segmental gear 28 meshed with a small pinion gear 29 splined to a shaft 30 extending across the chassis fraine and journalled in bearings secured to the chassis frame side bars.

As best shown in Figure 3 the forward mesh with a pinion gear 32 slightly larger than the pinion's 29. The gears 32 are mounted upon a shaft 33 extending across the chassis frame and journalled in bearings 34 secured to each chassis frame side bar.

The shaft 33 is adapted to be rotated by any desired means to impart the desired movement to the secondary lever 23 and consequently the main liftin lever 15 and the tilting box 14 through t e medium of the gear reduction hereinbefore described and in the present instance I have illustrated the same as ogerable manually by means of a handcran 35 adapted to be engaged with either end of the shaft 33. In order to prevent the gears 29 from runnin off the gears 28 and also to limit the upwar movement of the forward end of the box .14 I provide stop means including a hook member 36 carried by each lever 15 near its forward end and ada ted'to engage pins or stops 37 secured to t e side bars 21 when'the box has been tilted the desired angle. v The box 14 may be held in tilted position by means of a pawl or detent 38 pivotallv carried by the chassis frame side bar and adapted to engage the teeth of the segmental ear- 28. This pawl may be of any well nown construction. and when it is desired to lower the box to normal position the same is disenga 'ed from the segmental gear and the box a lowed to return under its own weight, the speed of the return being control ed by the operator.

Referring now more particularly to Figures 4 to 6, the secondary lever 39 is indesomewhat similar in construction to the main lifting 181'81115 with the exception that its length is considerably shorten The lever 39 has its forward end curved as at 40 and provided with a roller 41 adapted to track along the under side of the main lifting lever, the rearward end of the lever 39 being pivotally mounted by means of a bracket 42 journalled as at 43 to a bearing member 44 carried by the chassis frame side bar.

The segmental gear 28 in this form of my invention has a roller member 45 mounted at its upper forward corner adapted to track along the under side of the secondary lever 39 and as the leverage is increased in this form of my invention the gears 31 and 32 are dispensed with and the shaft 30 rotated by meansof the hand crank 35.

By the useof channel iron in forming the levers 15 and 39 the same are nested as depicted in Figure 4 when the box 14 is in its normal position whereby the levers are not cumbersome and occupy but a small amount of space when not in operative use and also provide strong leverage for tilting the box on its pivots.

' \Vhat I claim as my invention is:

1. In a vehicle, the combination with a frame and a tiltable load receiving box pivoted at one end thereto, of amain lifting lever having one end pivotally secured to the frame and its other end engageable with the under side of the box adjacent its forward free end, a segmental ear journally carried by said frame, a seconc lever carried by said segmental gear having means on its free end for engaging the under side of said main lifting lever, and means for rotating said segmental gear on its pivotto raise and lower said box.

2 In a vehicle, the combination with a frame having a tiltable load receiving box pivoted at one end thereto, of a lever having one end pivotally secured to the frame and its other end free, roller means journalled in i the free end of said lever and adapted to I track along the under side of said box adjacent its forward free end, a segmental gear 111111311X carried by said frame, a'second lever carried by said segmental gear, a roller ]ournalled in the forward end of said second lever and adapted to track along the under s1de of the main lifting lever, means for moving said segmental gear in either direction to tilt said box, a stop fixed to said box, and means carried by said first mentioned lever co-operating with said stop for limitin the tilting movement of the box.

3. In a vehicle, the combination with a frame and a tiltable load receiving box pivoted at one end thereto, of a lever having one end pivotally secured to the frame and its other end free and curved downwardly, a roller journaled in the free end of said lever and tracking along the under side of said channel iron U shaped in cross section and box, a second lever having its forward end disposed so that one will nest within them free and curved downwardly, a roller jourother when said load receiving box is in its naled in the free end of said second lever and normal position, and means for rotating said adapted to track along the under side of said segmental gear to impart a tilting movement main lifting lever, a segmental gear integral to said load receiving box.

with said second lever and journally carried In testimony whereof I affix my si ature. 15

by the frame, said levers being-formed of EMIL A. BUSAC 

